Title :
Performance of TCM schemes over equalized channels
Author :
Besbes, H. ; Le-Ngoc, T.
Author_Institution :
Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, Que., Canada
Abstract :
This paper presents a performance evaluation of TCM schemes over ISI channels with receivers using equalization. The asymptotic gain introduced by TCM coding schemes using the Ungerboeck´s (1982) criterion is derived in taking into consideration the effects of the channel impulse responses. Based on an approximation of the asymptotic gain, the effectiveness of a TCM coding scheme using the Ungerboeck´s criterion applied to a particular ISI channel can be assessed. Depending on the channel impulse response (CIR), a TCM scheme using the Ungerboeck´s criterion can have an inferior performance as compared to the uncoded system
Keywords :
approximation theory; decision feedback equalisers; encoding; intersymbol interference; transient response; trellis coded modulation; DFE; ISI channel; ISI channels; TCM coding; Ungerboeck criterion; asymptotic gain approximation; channel impulse response; equalization; equalized channels; performance evaluation; receiver; receivers; uncoded system; AWGN; Additive white noise; Baseband; Decision feedback equalizers; Decoding; Feeds; Gaussian noise; Hydrogen; Intersymbol interference; Viterbi algorithm;
Conference_Titel :
Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-6507-0
DOI :
10.1109/VETECF.2000.886307
